"SSL site" option

This involves creating a "secure" checkbox on the site form that will get passed to the backend so that the site gets HTTPS support (and only that). That's the first step in #394452: Full SSL support.

The vhost configuration would look something like this:

<VirtualHost *:80>
  DocumentRoot /var/aegir/drupal-5.18-aegir

  ServerName aegir.koumbit.net

  Redirect / https://aegir.koumbit.net/
</VirtualHost>

<VirtualHost *:443>
    SSLEngine On
    ServerAdmin webmaster@localhost
    ServerName aegir.koumbit.net

    DocumentRoot /var/aegir/drupal-5.18-aegir

   php_value session.cookie_secure 1
# Extra configuration from modules:

    # Error handler for Drupal > 4.6.7
    <Directory "/var/aegir/drupal-5.18-aegir/sites/default/files">
      SetHandler This_is_a_Drupal_security_line_do_not_remove
    </Directory>

</VirtualHost>

... so this will probably require another template. This is an otherwise pretty simple task: no certificate management and such.

This is just a matter of implementing a pre_task() hook in a new hosting_ssl module that will form_alter the site form and pass the 'ssl' flag in the backend. In provision, we should start a new provision_ssl module that will provide the new template, collect that ssl flag and override the site template if necessary, then write the ssl flag to the drushrc (see how aliases/redirection does it in #535098: domain redirection ).